Adobe Flash Player, self-proclaimed as "the world’s most pervasive software platform" certainly can hold that title. The results that I've given not only show the Flash Player to be ever-prevalent, but also (and more importantly) ever-growing. With each successive release taking less and less time to reach 85%+ adoption worldwide is amazing and I don’t think that any other software platform can even compare.
A lot of this is attributed to the ease of upgrading from previous versions…extremely quick downloads, easy install (typically two clicks), and no restart. After upgrading, it’s hard to even realize that you've changed release versions!
We're at Flash Player *9* now, not in Flash Player Beta. Each successive release adds a LOT of value to the player, whether it’s a more rigid and secure sandbox model in Flash Player 7, or the drastic increase in performance in Flash Player 9.
A lot can be said for the viability of the Flash Player and I am extremely excited to see how Flex, Flash-Lite and Apollo burst onto the scene in the next short while.
Charles